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What size helmet do I need for my 3-year-old?
Rather than trying to “guess” what scooter helmet size is good for your kiddo, we strongly suggest measuring the circumference of your child’s head to ensure a snug fit. All of our kids scooter helmets are adjustable; this means that there is a range of about (2) inches of adjustability for each particular size. Our Micro-brand helmets, for instance, feature the following size ranges:
Small: 18 – 20 ½ inches
Medium: 20 ½ inches – 22 ½ inches
Large: 22 ½ inches - 23 ¼ inches
You will want to measure your kiddo’s head just above the ears & all the way around to determine the needed helmet size; this measurement is essentially where the scooter helmet will be resting upon your child’s cranium.